Comparative analysis of the main economic and biological parameters of maize hybrids that determine their productivity

Abstract

Corn kernels are characterised by the presence of all the nutrients, macro- and microelements necessary for growth and development in an easily digestible form. Considering the differentiation of soil and climatic zones of cultivation, the breeding process is designed to establish hybrids of different maturity groups. The research purposes to evaluate maize hybrids of different maturity groups for a set of economic and biological traits of productivity, high-yield stability, and further cultivation in production conditions suitable for mechanised harvesting. Methods used in the research include informational, theoretical analysis, synthesis, analogy, comparison and generalisation; research identification, and measurement. During the research, a systematic analysis was applied, considering the uniqueness of technical, productive, and economic conditions for growing hybrid corn. The research results demonstrate that to achieve successful regulation of maize hybrids productivity and improve their quality, it is necessary to select for suitability for specific soils and climatic zones, considering the biological requirements for seeds and developing effective agrotechnical means designed for processes occurring at different stages of growth and development. The seeds of corn hybrids, formed by breeding, were determined by a high nutrient content: In mid-early corn, the content of crude protein was 9.2-9.9%, crude fat – 4.2-4.4%, BER (nitrogen-free extractives) – 82.5-83.3%, starch – 71.4-73.7%; in the medium-late group, the content of crude protein ranged from 9.8-10.4%, crude fat from 4.1-4.6%, BER from 80.6-82.2%, and starch from 70.2-74.1%. The medium-early group of hybrids obtained the optimal height of 245-276 cm, the weight of 1000 seeds – 308-344 g, the ratio of node height to plant height – 0.445; the medium-ripening group respectively 296-351 cm, 318-382 g, 0.455

Integrated Recycling and The Impact of Plastic Waste from Industry and Agriculture on The Environment

“…According to the characteristics of production areas, sources, and differentiation of plastic waste, it is necessary to update the localization of recycling and recycling models, as well as popularize application models. For recyclable plastic waste, priority should be given to developing environmentally friendly technologies, improving the recycling of single-component and mixed plastic waste, and developing environmentally friendly equipment to achieve low emissions and energy recovery [58,59].…”

Salt balance of promising halophytes Climacoptera lanata L. and Tamarix hispida L. in the Kyzylkum Desert

“…This fact confirms that these species can be used in a halophytic crop production program. Given the potential of halophyte resources, the US World Resources Institute emphasizes the development of a thorough system for selecting and evaluating halophytes that will participate in productive longevity (19)(20)(21) . Thus, researchers from different countries emphasize the fact that the experience of developing halophytes for economic purposes in arid regions of Central Asia is of great interest.…”

Proteomics Analysis Reveals Hormone Metabolic Process Involved in the Regulation of Kernel Water Content Induced by Exogenous Abscisic Acid in Maize

“…The critical link between the mechanical harvesting of corn kernels and kernel water content is pivotal because the latter significantly influences the optimal timing for mechanical harvesting. This timing typically falls to 25% within a specific timeframe after the kernels reach physiological maturity, as demonstrated by prior studies [6,7]. Inefficient timing for mechanical harvesting due to improper kernel water content poses a substantial obstacle to the adoption of mechanization in agriculture.…”